Russian Federation
Russian Federation
Russian Federation
Russian Federation
UDC 574.5
Small rivers experience the greatest anthropogenic impact. This causes negative changes due to their small flow volumes and long lengths. One or more factors may cause these changes. The aim of the study was to assess the pollution of a water body in the city of Stavropol. A comprehensive assessment of the water body's condition was conducted using a water pollution index. The content of polluting components in water was determined using methods of quantitative chemical analysis and assessment of the state of environmental objects approved for state environmental control and monitoring, as well as included in the State Register. In the city of Stavropol, water quality in reservoirs is monitored using parameters for fish-breeding ponds. The Mutnyanka River, which flows through the city of Stavropol, was chosen as the study site. This body of water is systematically subject to negative anthropogenic impacts, which affect the water's condition. A drawback of the various methods is the incomparability of the assessment criteria for various indicators. The results of quantitative chemical analysis of water samples collected at control sites of the Mutnyanka River in the Stavropol region are presented in the paper. An analysis of water samples for the presence of chemicals revealed water contamination with ammonium ions, the average concentration of which during the observed period exceeded the MPC by 9.2 times. In addition, research has revealed that the water contains chemicals such as iron, manganese, nitrites, petroleum products and phosphates. Annual analytical monitoring of anthropogenic impacts shows that this water body is the most polluted of the small rivers in the Kalaus River basin. A comprehensive impact assessment allows us to compile a water pollution index, which has been consistently increasing based on the results of the studies.
water, impact, quality, assessment, pollutants
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